JPH03580B2 - - Google Patents
Info
- Publication number
- JPH03580B2 JPH03580B2 JP54098454A JP9845479A JPH03580B2 JP H03580 B2 JPH03580 B2 JP H03580B2 JP 54098454 A JP54098454 A JP 54098454A JP 9845479 A JP9845479 A JP 9845479A JP H03580 B2 JPH03580 B2 JP H03580B2
- Authority
- JP
- Japan
- Prior art keywords
- storage battery
- cadmium storage
- nickel cadmium
- lifespan
- resistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Tests Of Electric Status Of Batteries (AREA)
- Secondary Cells (AREA)
Description
【発明の詳細な説明】
本発明はニツケルカドミウム蓄電池の充電中に
容易に寿命判定を行うことができる寿命判定法に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lifespan determination method that allows easy lifespan determination during charging of a nickel-cadmium storage battery.
従来、ニツケルカドミウム蓄電池の寿命判定
は、放電容量を確認して行う以外に方法はなく、
特に非常電源等におけるように平常時充電状態に
ある場合は放電容量を確認できず、たとえニツケ
ルカドミウム蓄電池の両端の電圧を測定しても充
電器の出力電圧を示すのみであり、直列に接続さ
れている単電池のいくつかが短絡して寿命が尽き
ていても判別できないため、従つて非常時になつ
て始めてそれが用を為さないことが判明するとい
う危険な状態を呈する例が多い。 Traditionally, the only way to determine the lifespan of a nickel cadmium storage battery is to check the discharge capacity.
In particular, when it is in a normal charging state such as in an emergency power supply, it is not possible to check the discharge capacity, and even if you measure the voltage across the nickel-cadmium storage battery, it only shows the output voltage of the charger; Even if some of the cells in the battery are short-circuited and have reached the end of their lifespan, it cannot be determined, and this often results in a dangerous situation in which it is discovered that they are no longer useful until an emergency occurs.
本発明は上記の点を解決するもので、準定電流
方式で充電中において、ニツケルカドミウム蓄電
池の単電池のいくつかが寿命がつきて内部短絡し
たときの大幅な電流の増大を寿命判定の基準とす
るものである。 The present invention solves the above-mentioned problems, and the lifespan is determined based on the significant increase in current when some of the cells of a nickel-cadmium storage battery reach the end of their lifespan and are internally shorted during charging using the quasi-constant current method. That is.
本発明の一実施例を説明する。 An embodiment of the present invention will be described.
商用電源から受電し変圧器１により降圧した
後、整流スタツク２で直流に変換し、抵抗器３を
通してニツケルカドミウム蓄電池４を準定電流方
式で充電する場合、ニツケルカドミウム蓄電池４
の充電々流はトリクル充電時通常数十ミリアンペ
ア程度であるのに対し、寿命判定時の充電々流は
非常に大きくなるので同一の電流計により電流増
加分を検出することが難しいため、挿入した抵抗
器３の両端に直流電圧計５を接続してその電位降
下分として検出し、ニツケルカドミウム蓄電池４
全体の寿命限界における電位降下分と比較して寿
命を判定するものである。 When receiving power from a commercial power source, stepping down the voltage through the transformer 1, converting it to direct current through the rectifier stack 2, and charging the nickel cadmium storage battery 4 through the resistor 3 using the quasi-constant current method, the nickel cadmium storage battery 4
The charging current during trickle charging is usually about several tens of milliamps, but the charging current during life judgment becomes very large, so it is difficult to detect the increase in current with the same ammeter, so it was inserted. A DC voltmeter 5 is connected to both ends of the resistor 3 to detect the potential drop.
The lifespan is determined by comparing the potential drop at the overall lifespan limit.
この場合、直流電圧計５の目盛にニツケルカド
ミウム蓄電池４の寿命限界電圧を電池取換え時期
としてしるしておき、定期的に観察管理すればよ
い。 In this case, the life limit voltage of the nickel cadmium storage battery 4 may be marked on the scale of the DC voltmeter 5 as the time for battery replacement, and the battery may be periodically observed and managed.
上述したように、本発明によればニツケルカド
ミウム蓄電池全体として負荷に対し電力供給がで
きなくなる前のいくつかの単電池が寿命が尽きた
段階で寿命判定が可能であり、而も充電状態のま
ま容易に行うことができるので、ニツケルカドミ
ウム蓄電池応用機器の信頼性を向上することにな
る等極めて有用であるといえる。 As described above, according to the present invention, it is possible to determine the lifespan of a nickel-cadmium storage battery at the stage when its lifespan has reached the end before the nickel-cadmium storage battery as a whole becomes unable to supply power to the load, and even when the battery remains in a charged state. Since it can be easily carried out, it can be said to be extremely useful in improving the reliability of equipment using nickel-cadmium storage batteries.
図面は本発明の一実施例における電気回路図で
ある。
１は変圧器、２は整流スタツク、３は抵抗器、
４はニツケルカドミウム蓄電池、５は直流電圧
計。
The drawing is an electrical circuit diagram in one embodiment of the present invention. 1 is a transformer, 2 is a rectifier stack, 3 is a resistor,
4 is a nickel cadmium storage battery, and 5 is a DC voltmeter.
Claims (1)
後、整流スタツクで直流に変換し、抵抗器を通し
てニツケルカドミウム蓄電池を準定電流方式で充
電しつつ、前記抵抗器の両端の電圧を測定するこ
とにより、ニツケルカドミウム蓄電池の単電池の
いくつかが寿命が尽きたときに増大する電流を前
記抵抗器の電位降下分として検出し、ニツケルカ
ドミウム蓄電池全体の寿命限界における電位降下
分と比較して寿命を判定することを特徴とするニ
ツケルカドミウム蓄電池の寿命判定法。1. Receive power from a commercial power source, step down the voltage with a transformer, convert it to direct current with a rectifier stack, charge the nickel cadmium storage battery through a resistor in a quasi-constant current method, and measure the voltage across the resistor. The current that increases when some of the cells of the nickel cadmium storage battery reach the end of their life is detected as the potential drop of the resistor, and the life is determined by comparing it with the potential drop at the end of the life of the entire nickel cadmium storage battery. A method for determining the lifespan of a nickel cadmium storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9845479A JPS5622976A (en) | 1979-07-31 | 1979-07-31 | Life time deciding method for nickel-cadmium accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9845479A JPS5622976A (en) | 1979-07-31 | 1979-07-31 | Life time deciding method for nickel-cadmium accumulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5622976A JPS5622976A (en) | 1981-03-04 |
| JPH03580B2 true JPH03580B2 (en) | 1991-01-08 |
Family
ID=14220152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9845479A Granted JPS5622976A (en) | 1979-07-31 | 1979-07-31 | Life time deciding method for nickel-cadmium accumulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5622976A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8980430B2 (en) | 2006-08-28 | 2015-03-17 | Frank J. Colombo | PCTFE film with extrusion coating of EVA or EVA with UV absorbers |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4968943A (en) * | 1988-05-02 | 1990-11-06 | Russo Frank J | Open battery bank detector circuit |
| JP2006312528A (en) * | 2005-05-09 | 2006-11-16 | Mitsubishi Electric Corp | Electric power storage device of elevator |
-
1979
- 1979-07-31 JP JP9845479A patent/JPS5622976A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8980430B2 (en) | 2006-08-28 | 2015-03-17 | Frank J. Colombo | PCTFE film with extrusion coating of EVA or EVA with UV absorbers |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5622976A (en) | 1981-03-04 |
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